11725228 has 6 divisors (see below), whose sum is σ = 20519156. Its totient is φ = 5862612.

The previous prime is 11725213. The next prime is 11725267. The reversal of 11725228 is 82252711.

It is a junction number, because it is equal to n+sod(n) for n = 11725196 and 11725205.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1465650 + ... + 1465657.

Almost surely, 2^11725228 is an apocalyptic number.

It is an amenable number.

11725228 is a deficient number, since it is larger than the sum of its proper divisors (8793928).

11725228 is a wasteful number, since it uses less digits than its factorization.

11725228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2931311 (or 2931309 counting only the distinct ones).

The product of its digits is 2240, while the sum is 28.

The square root of 11725228 is about 3424.2120261456. The cubic root of 11725228 is about 227.1819199310.

Adding to 11725228 its reverse (82252711), we get a palindrome (93977939).

It can be divided in two parts, 1172 and 5228, that multiplied together give a palindrome (6127216).

The spelling of 11725228 in words is "eleven million, seven hundred twenty-five thousand, two hundred twenty-eight".